What are communicable disease

Explanation:

Infectious disease is caused by certain microorganisms called pathogens and leads to infections. These can be spread from one person to another hence are also called communicable disease. For example cholera, malaria, chickenpox.

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada